Fall Protection Refresher Orientation. Fall Protection Refresher Orientation 1

Transcription

1 Fall Protection Refresher Orientation Fall Protection Refresher Orientation 1

2 Course Objectives! Understand the definitions of fall prevention, fall restraint, and fall arrest.! Understand the requirements of fall protection.! Recognize the hazards associated with fall protection.! Know where to seek help and advice for fall protection (FESHM Chapter 5066) Fall Protection Refresher Orientation 2

3 Course Objectives! Know how to inspect and wear personal fall arrest system equipment (PFAS).! Know the requirements for anchorage points and how to tie off to them. Fall Protection Refresher Orientation 3

4 What is Fall Protection?! A series of reasonable steps taken to cause elimination or control of the injurious effects of an unintentional fall while accessing or working at height Fall Protection Refresher Orientation 4

5 Fall Statistics! Falls are the leading cause of fatalities in the construction industry.! An average of 362 fatal falls occurred each year from 1995 to 1999, with the trend on the increase.! The cost of care for injuries related to falls is a financial burden for the entire construction industry Fall Protection Refresher Orientation 5

6 Where Do Fatal Falls Occur Floors, Loading Docks, Ground Level 4% Non-moving Vehicles 3% Other 12% Structural Steel 9% Roofs 37% Ladders 15% Scaffolds 20% Fall Protection Refresher Orientation 6

7 Where Do Non-Fatal Falls Occur Other 22% Roofs 12% Scaffolds 15% Non-moving Vehicles 9% Stairs/Steps 7% Ladders 35% Fall Protection Refresher Orientation 7

8 Anatomy of a Fall.33sec./2 feet.67 sec./7 feet 1 sec./16 feet! It takes most people about 1/3 of a second to become aware.! It takes another 1/3 of a second for the body to react.! A body can fall up to 7 feet in 2/3 of a second. 2 sec./64 feet Fall Protection Refresher Orientation 8

9 Planning for Fall Protection! Best practice dictates that fall protection becomes an integral part of the work planning process, from constructability, to systems installation, to use and maintenance! The workplace cannot be truly safe unless fall protection is incorporated into every phase of the process! Planning will keep workers safe and minimize fall exposures Fall Protection Refresher Orientation 9

10 The Steps of Fall Protection?! Is this the correct order? Fall Protection Refresher Orientation 10

11 Controlling Fall Exposures! General industry regulations (paraphrased) Every open-sided floor, platform, wall opening, or hole 4 feet or more above adjacent floor or ground level shall be guarded by a standard railing, or the equivalent, on all open sides except where there is entrance to a ramp, stairway, or fixed ladder.! Construction industry regulations (paraphrased) Each employee on a walking/working surface (horizontal and vertical surface) with an unprotected side, edge, or hole which is 6 feet (1.8 m) or more above a lower level shall be protected from falling by the use of guardrail systems, safety net systems, or personal fall arrest systems. Fall Protection Refresher Orientation 11

12 Controlling Fall Exposures! FESHM Chapter 5066 Fall Protection Program Any worker, visiting scientist, or subcontractor involved in work activities and exposed to a fall hazard at or greater that 6 will require fall protection if fall prevention methods cannot be used. 29 CFR 1910 and 29 CFR 1926 shall be followed when the work involves hazards that require fall protection. There are requirements that apply to all general work as well as specific requirements based upon the work activity that is being performed. Exceptions to fall protection requirements, as provided in , are ONLY for construction-related activities. There are no fall protection exemptions for maintenance or operations work. Fall Protection Refresher Orientation 12

13 Using Fall Protection Systems! Select fall protection systems appropriate for given situations.! Use proper construction and installation of safety systems.! Supervise employees properly.! Use safe work procedures.! Train workers in the proper selection, use, and maintenance of fall protection systems.! Evaluate the effectiveness of all steps Fall Protection Refresher Orientation 13

14 Fall Protection Methods! Fall Prevention- A system that will prevent a person from falling to a lower level. Example: Railings! Work Positioning or Fall Restraint- A system that will allow the worker to approach a fall hazard and work but will not allow the worker to fall to a lower level.! Fall Arrest- A system that will protect a person from crashing on to a lower level after a fall. Example: Fall Arrest Harness/lanyard Fall Protection Refresher Orientation 14

15 Competent Person! means one who is capable of identifying existing and predictable hazards in the surroundings, or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has the authorization to take prompt corrective measures to eliminate them. Fall Protection Refresher Orientation 15

16 Qualified Person! Qualified person" means one with a recognized degree or professional certificate and extensive knowledge and experience in the subject field who is capable of design, analysis, evaluation and specifications in the subject work, project, or product. Fall Protection Refresher Orientation 16

17 When Is Fall Protection Required?! What are the fall distances that trigger guardrails and fall protection? Fall Protection Refresher Orientation 17

18 When Is Fall Protection Required?! Fall prevention is required for falls onto dangerous equipment. Zero fall distance is allowed. Fall Protection Refresher Orientation 18

19 When Is Fall Protection Required?! Fall protection is required for work on forms or steel reinforcing over 6 in height Fall Protection Refresher Orientation 19

20 When Is Fall Protection Required?! Fall protection is required for scaffolding over 6 in height. OSHA allows up to 10 but the Lab rule is 6. Fall Protection Refresher Orientation 20

21 When Is Fall Protection Required?! Fall protection required for walking / working surfaces over 4 in height in general industry Fall Protection Refresher Orientation 21

22 When Is Fall Protection Required?! Fall protection required for walking / working surfaces over 6 in height in construction Fall Protection Refresher Orientation 22

23 When Is Fall Protection Required?! Fall protection is required for vertical ladders without cages over 24 Fall Protection Refresher Orientation 23

24 When Is Fall Protection Required?! No fall protection is required for portable extension ladders Fall Protection Refresher Orientation 24

25 Hazard Recognition! What are the allowable controls and best practices? Fall Protection Refresher Orientation 25

26 Walking & Working Surfaces! Hazards with working/walking surfaces Open-sided floors Holes Leading edges Fall Protection Refresher Orientation 26

27 Open Sided Floors! Guardrails! Restraint Devices Fall Protection Refresher Orientation 27

28 Wood Guardrail Construction Proper Height Midrails Toeboards Adequate Strength Fall Protection Refresher Orientation 28

29 Guardrail Construction Bad Better Fall Protection Refresher Orientation 29

30 Cable Guardrail Construction Proper height Cannot deflect below 39 Marked every 6 Terminations and attachments Maintenance Fall Protection Refresher Orientation 30

31 Accessways/Ladderways Bad Better Fall Protection Refresher Orientation 31

32 Holes! Secured indentified covers! Guardrails Fall Protection Refresher Orientation 32

33 Skylights Must be protected Fall Protection Refresher Orientation 33

34 Aerial Work Platforms! A personal fall arrest system (PFAS) is required whenever you are working in an Articulating and/or telescoping boom lifts and bucket trucks! Use the manufacture s designated anchorage points. Fall Protection Refresher Orientation 34

35 Personal Fall Arrest Systems! Should only be used when other fall prevention means can not be used or are not feasible. Fall Protection Refresher Orientation 35

36 Personal Fall Arrest Systems! Used to protect an employee from hitting a lower level once they have fallen.! Components include: An anchorage point Body harness Deceleration devices Connectors lanyards, rope grabs, anchorage connectors Fall Protection Refresher Orientation 36

37 Personal Fall Arrest Systems! When using personal fall arrest systems: If you fall, the impact force to the body has to be less than 1800 pounds, achieved by using shock absorbing lanyards and a harness Minimize fall distance, the maximum free fall distance can only be 6 feet There can not be any structures below in you fall distance Maximum weight of an individual w/tools is 310 pounds Fall Protection Refresher Orientation 37

38 Fall Distances! Free Fall Distance The vertical displacement of the fall arrest attachment point on the employee's harness between onset of the fall and just before the system begins to apply force to arrest the fall.! Deceleration Distance The distance between the location of an body harness attachment point at the moment of activation of the deceleration device during a fall, and the location of that attachment point after the employee comes to a full stop. Fall Protection Refresher Orientation 38

39 Minimizing Free Fall Distance 6 Lanyard Length 3.5 Deceleration Device Extended Lanyard Length Plus maximum 2 extension (usually within inches) Tie to anchor above the D-ring Or use a retractable Using an anchorage above the D-ring and a standard lanyard may still allow an employee to fall a distance that may be difficult to rescue from. Using a retractable minimizes forces on the body, and may make rescue easier (and therefore more timely) Fall Protection Refresher Orientation 39

40 Calculating Total Fall Distance Fall Protection Refresher Orientation 40

41 Watch Swing Falls! This worker is tied off using a retractable lifeline.! There is a major swing fall potential if he fell to either side. Swing Fall Fall Protection Refresher Orientation 41

42 Personal Fall Arrest Systems! Anchorage! Body! Connector Harnesses Caribiners Rope Grabs Lanyards Beam Wraps Fall Protection Refresher Orientation 42 Positioning

43 Anchorages! Fall arrest anchor points must support 5000 lbs per employee attached! Fall restraint anchor points must support at least 1000 lbs per employee attached! Ask your supervisor, Senior Safety Officer, or the ESH Section safety representatives if you need assistance in determining an adequate anchorage point Fall Protection Refresher Orientation 43

44 Roof & Deck Anchors Permanent Anchors Wood Roof Anchor Metal Roof Anchor Fall Protection Refresher Orientation 44

45 Use of Eye Bolts! Rated for loading parallel to the bolt axis.! If wall mounted, the rating perpendicular to the axis must be good for 5,000 lbs. per employee Rated Needed Fall Protection Refresher Orientation 45

46 Girder Grip Anchorage Rings! These attachments can be mounted through bolt holes on steel members.! They are rated at 5,000 lbs. in all directions Fall Protection Refresher Orientation 46

47 Removable Concrete Anchors! These attachments can be mounted in holes of concrete.! They are rated at 5,000 lbs. in all directions Fall Protection Refresher Orientation 47

48 Anchorage Connectors! These type of connectors enable you to tie off to various types of anchorage points Fall Protection Refresher Orientation 48

49 Beam Clamps Beam clamps can make an effective anchorage when used properly, and with the correct lanyard TIGHT BEAM CLAMP PIN SET Be sure pin is inserted full length and clamp is tight. Fall Protection Refresher Orientation 49

50 Horizontal Life Lines! Provide maneuverability! Must be designed, installed and used under the guidance of a qualified person This could be interpreted as requiring the use of manufactured systems, which is recommended Fall Protection Refresher Orientation 50

51 Horizontal Line Engineering 72,000 lb 72,000 lb 5,000 lb 5,000 lb Anchor stress depends on the sag angle of the line. Fall Protection Refresher Orientation 51

52 Line Stanchions! The connection of the line stanchion to the flange must support the bending moment applied to the base. 3 ft. Bending Moment 15,000 ft-lb 5,000lb. Fall Protection Refresher Orientation 52

53 Aerial Work Platform Anchorages! Use the manufacture s designated anchorage points. Never use guardrails as anchorage points. Fall Protection Refresher Orientation 53

54 Body Harness! Need to be inspected before use by the worker, and at least annually (documented) by a Competent Person! Harnesses should never be modified! Do not write on or paint harnesses unless material is approved for use! Should be taken out of service immediately if defective or exposed to an impact Fall Protection Refresher Orientation 54

55 Harness Fitting Chest strap tightened at mid chest D ring between shoulder blades Proper snugness shoulder to hips Leg straps snug but not binding Butt strap supports the load! Harnesses must be sized for the worker. Workers must weigh more than 130 lbs. and less than 300lbs. Fall Protection Refresher Orientation 55

56 Harness Pressure Points Spread load across butt strap and belt strap if on the harness Excess pressure here can cut blood flow to the legs Some studies have indicated permanent damage to the lower extremities when the worker hangs for more than twenty (20) minutes Fall Protection Refresher Orientation 56

57 Deceleration Devices! Any mechanism with a maximum length of 3.5 feet, such as a rope grab, rip stitch lanyard, tearing or deforming lanyards, selfretracting lifelines, etc. which serves to dissipate a substantial amount of energy during a fall arrest, or otherwise limit the energy imposed on an employee during fall arrest. Fall Protection Refresher Orientation 57

58 Lanyards! A flexible line of rope, wire rope, or strap which generally has a connector at each end for connecting the body belt or body harness to a deceleration device, lifeline or anchorage.! Must not be tied back to themselves unless specifically designed for such use! Should have the appropriate clip for the intended anchorage points! Do not knot or wrap around sharp objects Fall Protection Refresher Orientation 58

59 Lanyards! Various types of energy absorbing lanyards Fall Protection Refresher Orientation 59

60 Retractable Lifelines! Deceleration devices containing a drum-wound line which can be slowly extracted from, or retracted onto, the drum under slight tension during normal employee movement, and which, after onset of a fall, automatically locks the drum and arrests the fall.! Do not use with energy absorbing lanyards. Fall Protection Refresher Orientation 60

61 Lifelines! A component consisting of a flexible line for connection to an anchorage at one end to hang vertically or for connection to anchorages at both ends to stretch horizontally and which serves as a means for connecting other components of a personal fall arrest system to the anchorage. Fall Protection Refresher Orientation 61

62 Positioning Systems! Positioning devices provide hands-free work Additional fall protection may be required to move or access Fall Protection Refresher Orientation 62

63 Restraint Devices! Provide access but prevent the fall! Limit anchorage requirement to 1000 lbs! May be more suitable for loading areas, scaffold erection and dismantling! Should be installed and used under the supervision of a Competent Person Fall Protection Refresher Orientation 63

64 Fall Restraint Restraint Line Edge! Fall restraint assumes the employee cannot reach the edge, they are basically on a short leash.! If the employee can fall over the edge, then a personal fall arrest system must be used. Fall Protection Refresher Orientation 64

65 Use of Restraint Cables Example of restraint cables used during deck anchoring. RESTRAINT CABLE Fall Protection Refresher Orientation 65

66 Planning For A Rescue! Whenever working with the potential of hanging by a harness, a rescue plan must be in effect.! A written Hazard Analysis must be done and employees must be trained on the plan. Fall Protection Refresher Orientation 66

67 Planning For A Rescue! The rescue plan must be written in the hazard analysis! The goal is to rescue the employee as soon as possible and limit the hanging time to no more than fifteen minutes.! Plan for a worker that is unconscious.! Ensure all the rescue equipment in the vicinity! Call x3131whenever someone has been in a fall arrest situation Fall Protection Refresher Orientation 67

68 Fall Protection For any additional information or questions regarding this presentation call: Rafael Coll John Cassidy ES&H Section ES&H Section Ext: 8518 Ext: 8223 Fall Protection Refresher Orientation 68